<div>
    ng-include-2.3
    <br/>
    数据三：<input type="text">

    <button type="button" class="btn btn-primary-plain" ng-click="vm.formStep(2);">
        上一步
    </button>
    <button type="button" class="btn btn-primary-plain" ng-click="vm.nextStep(4);">
        下一步
    </button>
</div>